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HECO Digital Micro Servo HDS877MG 50% OFF SALE - 'Til It's Gone! Was $23.50 Radical RC Digital Micro Servo. Metal Gears.
This servo is a good choice for the T-Rex 400 and similar sized heli's. A customer reports great performance with his GY401.
Specifications: Comes with universal connector and two control arms, mounting screws.
Dimensions 0.86 x 0.4 x 0.9 in. (21.8 x 11 x 19.8mm)
Torque (4.8V) 1.2kg-cm/12 oz.in.
Transit Time (4.8V)0.11 sec./60?.
SKU Number: HDS877MG